DT Swiss XM481 rim is built for reliable downcountry use with a nearly seamless welding process and a 30mm internal width, ideal for tires between 2.3" 2.8" \n DTSwiss patented Pro Head Reinforcement System (PHR System) is designed to balance the load transferred to the rim, working as a ball and socket interface, requiring unique washers and Squorx nipples \n DT 370 LN hubs are compatible with all Ratchet LN freehub bodies as well as DT's 36 and 54 POE ratchet upgrade options \n Built with DT Swiss Competition double butted spokes (2.0/1.8/2.0) and brass DT Swiss Squorx nipples \n Hand laced and trued in the USA